Fresh Water tank drain 2018 Isata 5 30FW

[Delco Bobby]

Originally Posted by LandKKnight

Found it!! Thanks for all the help! It seems like its gonna take a really long time for the tank to empty, might be faster to open all the faucets and shower and then empty the gray, but would that be too hard on the water pump? We don't have much in there, the gauge is reading empty, just need to empty all the way as much as possible. Thoughts?

When I was new to the RV world my first mh was a Sunseeker. I had the dealer winterize it the first winter. After I picked it up I went shopping, then noticed liquid pouring out of the RV. I freaked out. Didn’t know what was going on and was concerned that I was polluting a parking lot.

Called service writer who said they leave the valves open for the winter. That didn’t sit well with my ignorance.

Bottom line, leave the valve open and drive mh around for a few weeks to get most of the water out. I live in a hilly area so there is lots of movement in all direction to help drain the water.

[Space Cowboy]

The only place I found a valve was right on the tank itself. To access, you remove the wood piece of plywood under the main mattress in the rear of the RV. Remove the four screws, lift wood panell and you will see the petcock valve on the tank and the connected drain hose that goes through the floor. Open up valve and you will see the water come out of the middle hose in the group of three hoses right under the compartment by all the other water and drain equipment .